Getting into Heaven only with Joseph Smith's consent

From Brigham Young:
Joseph Smith holds the keys of this last dispensation, and is now engaged behind the vail in the great work of the last days. I can tell our beloved brother Christians who have slain the Prophets and butchered and otherwise caused the death of thousands of Latter-day Saints, the priests who have thanked God in their prayers and thanksgiving from the pulpit that we have been plundered, driven, and slain, and the deacons under the pulpit, and their brethren and sisters in their closets, who have thanked God, thinking that the Latter-day Saints were wasted away, something that no doubt will mortify them - something that, to say the least, is a matter of deep regret to them - namely, that no man or woman in this dispensation will ever enter into the celestial kingdom of God without the consent of Joseph Smith. From the day that the Priesthood was taken from the earth to the winding-up scene of all things, every man and woman must have the certificate of Joseph Smith, junior, as a passport to their entrance into the mansion where God and Christ are - I with you and you with me. I cannot go there without his consent. He holds the keys of that kingdom for the last dispensation - the keys to rule in the spirit-world; and he rules there triumphantly, for he gained full power and a glorious victory over the power of Satan while he was yet in the flesh, and was a martyr to his religion and to the name of Christ, which gives him a most perfect victory in the spirit-world. He reigns there as supreme a being in his sphere, capacity, and calling, as God does in heaven. Many will exclaim - "Oh, that is very disagreeable! It is preposterous! We cannot bear the thought!" But it is true. – Journal of Discourses 7:289 (Oct 9, 1859)